[INFO] fetching crate kvon-rs 0.3.1...
[INFO] building kvon-rs-0.3.1 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate kvon-rs 0.3.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate kvon-rs 0.3.1 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kvon-rs 0.3.1
[INFO] finished tweaking crates.io crate kvon-rs 0.3.1
[INFO] tweaked toml for crates.io crate kvon-rs 0.3.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate kvon-rs 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6cfab1a4b0f106622c72cb3f844c9cbb2e46b5ab0864804ebae3871981c325d
[INFO] running `Command { std: "docker" "start" "-a" "f6cfab1a4b0f106622c72cb3f844c9cbb2e46b5ab0864804ebae3871981c325d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6cfab1a4b0f106622c72cb3f844c9cbb2e46b5ab0864804ebae3871981c325d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6cfab1a4b0f106622c72cb3f844c9cbb2e46b5ab0864804ebae3871981c325d", kill_on_drop: false }`
[INFO] [stdout] f6cfab1a4b0f106622c72cb3f844c9cbb2e46b5ab0864804ebae3871981c325d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 091edf4e4670b30dec28e792c6e17af46ab2acc25e1bfcc51cb937e951d143a9
[INFO] running `Command { std: "docker" "start" "-a" "091edf4e4670b30dec28e792c6e17af46ab2acc25e1bfcc51cb937e951d143a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling kvon-rs v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `Command { std: "docker" "inspect" "091edf4e4670b30dec28e792c6e17af46ab2acc25e1bfcc51cb937e951d143a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "091edf4e4670b30dec28e792c6e17af46ab2acc25e1bfcc51cb937e951d143a9", kill_on_drop: false }`
[INFO] [stdout] 091edf4e4670b30dec28e792c6e17af46ab2acc25e1bfcc51cb937e951d143a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6cb5c83984fd49cd12e7f62f9a16a598a7991217a44e417b1ffefb9c44c5773
[INFO] running `Command { std: "docker" "start" "-a" "c6cb5c83984fd49cd12e7f62f9a16a598a7991217a44e417b1ffefb9c44c5773", kill_on_drop: false }`
[INFO] [stderr]    Compiling kvon-rs v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "c6cb5c83984fd49cd12e7f62f9a16a598a7991217a44e417b1ffefb9c44c5773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6cb5c83984fd49cd12e7f62f9a16a598a7991217a44e417b1ffefb9c44c5773", kill_on_drop: false }`
[INFO] [stdout] c6cb5c83984fd49cd12e7f62f9a16a598a7991217a44e417b1ffefb9c44c5773